Boneham H6412NE Press Fit Headed Drill Bushing Steel

Product Description

The BONEHAM H6412NE is a Type H press fit headed drill bushing manufactured from steel, designed to guide drill bits and boring tools with precision in production drilling applications. With an inside diameter of 49/64 inches and a body outside diameter of 1 inch, this bushing presses directly into a jig plate or fixture without the need for a locking mechanism. The head outside diameter measures 1-15/64 inches and the head height is 5/16 inches, with a length under the head of 3/4 inches. It is a non-renewable, non-counterbored design intended for permanent installation in drill jigs. Machinists and tooling technicians install this component in manufacturing and metalworking environments.

This bushing is suited for use in drill jig fixtures in production machining operations where a permanent, press-in bushing is required. The headed design seats flush against the top face of the jig plate, providing a positive stop on installation depth and added resistance to axial push-through under drilling loads. It is appropriate for applications in job shops, machine shops, and manufacturing facilities where consistent hole location accuracy is critical across repeated operations.

Key Features

• Press fit installation method — no separate locking collar required
• Inside diameter of 49/64 inches with a tolerance of +0.0002 to +0.0006 inches for precise tool guidance
• Body outside diameter of 1 inch with a head outside diameter of 1-15/64 inches
• Head height of 5/16 inches provides a positive seating surface against the jig plate
• Length under head of 3/4 inches for standard jig plate thicknesses
• Steel construction for durability in production drilling environments
• Non-renewable, non-counterbored design for permanent fixture use

Compatibility

Designed as an OEM-style press fit headed drill bushing conforming to Type H industry standards, suitable for use in standard drill jig fixtures requiring a 1-inch body outside diameter press fit bushing.

Installation Notes

This bushing is installed by tooling technicians or machinists using a press or arbor press to seat the bushing into a precisely reamed hole in the jig plate. Power to any associated machinery must be locked out and tagged out before fixture modification or bushing installation. The receiving hole in the jig plate must be reamed to the appropriate tolerance to achieve proper press fit interference. Do not drive the bushing in with a hammer blow directly to the head face, as this may damage the seating surface or alter the inside diameter tolerance.